﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace BasicWebSite.Forms.Dinamik
{
    public partial class faktoriyel_hesapa : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            int ekrandanOkunanSayi = 0;
            int.TryParse(TextBox1.Text, out ekrandanOkunanSayi);

            Literal1.Text = Factorial(ekrandanOkunanSayi).ToString();
        }

        static long Factorial(long number)
        {
            if (number <= 1)
                return 1;
            else
                return number * Factorial(number - 1);
        }

    }
}